If you guys were really rational, then you would see the logic/rationality of expressing your feelings, getting out there, and interacting with folks on a regular basis!
Maybe you do, but if what I see from these posts are any indication, you do not express yourselves nearly as efficiently as we NFs.
WRONG. Expressing feelings isn't always a good thing. It depends on the situation. If you're feeling irritable, and little things your mate does get on your nerves, should you automatically express them? No. Similarly, some of your frustrations might be altogether YOUR issues, and expressing that frustration would do nothing but cause strife. Third, there are times when expressing things doesn't help at allm but merely stirs up more intra-psychic friction. In these cases, it might be better to analyze and investigate what you're thinking.
Regarding regularly interacting with folks, it's not so obvious what that means. Some people have high needs, some people have low needs, and some people have pathological needs, using interaction as a way to distract themselves from underlying sadness, or restlessness. In these cases, interaction is not beneficial, even detrimental.
Self-expression and interaction can be beneficial, but they don't override logic and understanding; they're subsumed by it. Your final line about NF's "expressing themselves more efficiently (I think "articulate" is the word you're looking for...ZING!) is just speculation. I'd disagree with it.